Description
AD331 is a waterproof portable meter that reads Conductivity in 5 ranges and temperature. The auto ranging feature of the EC range automatically sets the instrument to the scale with the highest resolution. Measurements are compensated for temperature effect automatically (ATC) or manually (MTC). It is also possible to disable the temperature compensation feature to measure the actual conductivity. The temperature coefficient is user selectable. This instrument also features a measurement stability indicator, GLP capability, and a user selectable ID code to uniquely identify the instrument.
EC Specifications
EC range
0.00 to 19.99 μS/cm | 20.0 to 199.9 μS/cm | 200 to 1999 μS/cm | 2.00 to 19.99 mS/cm | 20.0 to 199.9 mS/cm
EC Resolution
0.01 μS/cm | 0.1 μS/cm | 1 μS/cm | 0.01 mS/cm | 0.1 mS/cm
EC Accuracy (@25ºC/77ºF)
±1% f.s.
EC Calibration
Offset 0.0 μS/cm; Slope: 1 point with 6 memorized standards (84.0, 1413 μS/cm; 5.00,12.88, 80.0, 111.8 mS/cm) or one custom value
Temperature Compensation
ATC/MTC, -9.9 to 120.0°C
Temperature Specifications
Temperature Range
-9.9 to 120.0°C
Temperature Resolution
0.1°C
Temperature Accuracy
±0.5°C
Additional Specifications
Electrode/Probe
AD76309 - Stainless steel, 4-ring EC/TDS/Temperature probe with DIN connector and 1 m cable
GLP
Yes (With time stamp)
Memory
Log-on-demand: Up to 250 samples
Hold Function
Yes
Low Battery Indication
Yes
Auto Shutt-off
User selectable: 5 minutes or disabled
Battery Type / Life
4 x 1.5V AA batteries / Approx. 200 hours of continuous use
Dimensions
188 x 96 x 70 mm
Weight
460 g
Ordering Information
Adwa AD331 is supplied with AD76309 - Conductivity probe with built-in temperature sensor; AD70031 - 1413 μS/cm calibration solutions in sachet (20 ml); AD70030 - 12.88 mS/cm calibration solutions in sachet (20 ml); Wrist strap; Batteries (4 x 1.5V, AA alkaline); Instruction manual
